http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S54115390-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f6e960aa6ad2ba6401030159343ebe68 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D321-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-02 |
| filingDate | 1978-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_686c00fa0664990963c33689b0227ee3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d0a926da590c43fc5e5169e9690cde0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b07aab8a6193b650c8a1ba5535bbbf6a |
| publicationDate | 1979-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S54115390-A |
| titleOfInvention | Preparation of large ring ethylenedioate |
| abstract | PURPOSE: To obtain the title compound useful as musk perfumes, in a simple process in high yield, by polymerizing a dibasic fatty acid with ethylene glycol in the presence of an aluminum compound having a carbonate radical, and by depolymeirzing and ring closure of the polymer in vacuo. n CONSTITUTION: A basic aqueous solution of an aluminum compound, e.g. Al(OH) 3 , is brought into contact with CO 2 gas or a substance which produces CO 2 gas, to give an aluminum compound having a carbonate radical. A dibasic fatty acid of formula I: (n is an integer 6W14) or its ester is polymerized with ethylene glycol or ethylene oxide in the presence of the aluminum compound thus obtained at 50W250°C, preferably 100W200°C, and subjected to depolymerization and ring closure at 180W300°C, preferably 240W280°C, at a pressure of 10 -2 W 10 mm Hg, preferably 10 -1 Wl mm Hg, to give a large ring ethylenedioate of formula II. n COPYRIGHT: (C)1979,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1059903-C http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4594434-A |
| priorityDate | 1978-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.